Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Not characterized by a dipole: a nonpolar covalent bond.
  • adj. Not ionizing when dissolved in water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not containing a dipole.
  • adj. Not ionic; not dissociating into ions when dissolved in water etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not ionic

Etymologies

Sorry, no etymologies found.

Examples

  • But nonpolar substances are effective solvents for one another; to put it in other words, nonpolar substances dissolve in other nonpolar substances.

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  • Because these mountains encompass the largest nonpolar ice mass in the world — some 46,298 glaciers covering 17 percent of the area's land mass — the region is known as the "third pole."

    The Most Endangered Glaciers

  • Most laboratories store chemicals in dimethyl sulfoxide (DMSO), a popular solvent that can dissolve both polar (i.e., miscible with water) and nonpolar compounds.

    Toxicity testing- new dimensions

  • For example, concentration gradient, molecular weight, lipid solubility, and polarity are important, with the smaller, nonpolar toxicants, in high concentrations, most likely to gain entrance.

    Distribution of toxicants in the body

  • Dirt, foods, cleaners, and other substances in the home can be divided into three chemical categories: ionic, polar, and nonpolar.

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  • The more nonpolar a substance is, the more nonpolar a solvent you need to dissolve it.

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  • As a rule, substances made of polar molecules do not mix with substances made of nonpolar molecules.

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  • The nonpolar end is soluble in oil and grease and repelled by water: it is water-hating or hydrophobic.

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  • And generally speaking, the more polar a substance is, the more soluble it is in water, and the more nonpolar it is, the less soluble in water.

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  • Some other examples of familiar substances made of ionic, polar, and nonpolar molecules include:

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